Burner for the removal of hardened masses in furnaces or the like.



N0. 705.4!8. Patented July 22, I902.

H. A. E. MENNE.

BURNER FOR THE REMOVAL OF HARDENED MASSES IN FURNACES UP THE LIKE.

(Application filed Apr. 14, 1902.)

(No Model.)

A UNITED STATES,

PATENT OFFICE.-

HERMANN ADOLPH ERNST MENNE, or OREUZTHAL, GERMANY, Assrenon TOooLN-MusENERBERewERKs AOTIEN VEREIN,"OF GREUZTHAL, WEST- PHALIA,GERMANY.

BURNER FOR THE REMOVAL OF l-|ARDENED MASSES lN F URN ACES- OR'THE LlKE.

SPECIFICATION forming part of Letters Patent No. 705,418, dated July 22,1902.

Application filed April 14, 1902.

.To all whom, it may concern.- Be it known that I, HERMANN ADOLPH ERNSTMENNE, a subject of the German Emperor, residing at Oreuzthal,Westphalia, 5 Germany, have invented new and usefullmprovements inBurners for the Removal of Hardened Massesin Furnaces or the Like, ofwhich the following is a specification.

My present invention relates to a burner orv [O jet for carrying out themethod for the removal or fusion of hardened masses in fur naces and thelike. It is necessary to prtect the burner-point, as the latter issubject to the action while in the holes formed in the molten material,which holes gradually increase in depth, of the flame thrown back by themolten mass or of the oxygen gas and the molten material. The jet,therefore, which has only a small amount of protective matezo rial,would melt away much quicker than the material treated. The materialused for protecting the point of the burner orjet must be a hard,refractory, non-combustible, or only slightly-combustible, material andnot in- 2 5 fluenced by changes of temperature. The burnerprotectingmeans known and used hitherto-as, for instance, steatite, platinum, orthe like-do not comply with these requirements.

According to the present invention the fusion of the burner-point isprevented by a casing of refractory and slowly-combustible materia1as,for instance, compressed coal, graphite, coke, gas-retort carbon,magnesite, 3 5 carborundnm, or the 1ikeor by providing a water-coolingdevice around the nozzle.

Inthe drawings, Figure 1 shows the burner with its point protected.Fig.2 shows the burner-head and the gas-supply connection on an enlargedscale. Fig 3 is a section on .the line as w of Fig. 2 as seen in thedirection of the arrows. Fig. 4 is a section on the line y y of Fig. 5,which shows a burner-head with a water-cooling device.

In the outer tube a, which supplies the combustiblegashydrogen-petroleum vapors or the likeis arranged the feed-pipe Z) forthe Serial No. 102,886. (No model.)

oxygen gas. The oxygen-tube?) isprovided at its rear 'end with a nut c,and the rear end protecting-casing upon the expansion of thetube.

f represents set-screws to position the tube 1), and a b are theconnecting parts for the gas-supply pipes.

The casingor protector can also be made of several single rings ofcarbon or the like, so as to restrict themelting of the burner= pointonly down to the next ring in case the first ring should, break. Asalready mentioned, the meltingof the burner-point can be also preventedbythe use of a water-cooling device, as shown in Figs. 4. and 5. Thecooling-water enters at 9, passes into the cooling-chamber g, surroundsand cools the tube a, and leaves at 9 As fresh water is continuallyadmitted, it effects a continuous cooling of the burner-point. This partg may be made of any suitable material.

The connectingunions or pipes for the gassupply are preferably providedwith valves or taps for the regulation of the gas-supply.

The inner tube can be arranged so as to be withdrawn through aconvenient stuffing-box, and its discharge-opening is preferablysituated about ten millimeters within the 0pening of 1 the outer tube.

Having now particularly described the nature of my invention and how thesame is to be performed, I declare that what I claim is 1. In a burner,the combination of concentric pipes for conveying fuel and oxygen,

yielding material surrounding the outer-pipe at its delivery end, and acovering of hardrefractory non-conducting materiaf'surronnd ing'saidyielding material, substantially as described.

2. In a burner, the combination of concenmeans for centering the innerpipe in the outer name to this specification in the presence of pipe, acircular layer of yielding material surtwo subscribing witnesses.rounding the delivery end of the outer pipe and a circular covering ofhard refractory 5 non-conducting material surrounding said Witnesses:

yielding material, substantially as described. WALDEMAR HAUPT,

In testimony whereof I have signed my HENRY HASPER.

HERMANN ADOLIII ERNST MENNE.

